1: (3 8 15)

(0 14 2)(1 9 5)(3 13 11 15 6)(4 20 18)(7 12 10)(8)(16 19 17)

2: (1 9 5)

(0 14 2)(1)(3 13 11 15 6)(4 20 18)(5)(7 12 10)(8)(9)(16 19 17)

3: (0 14 2)

(0)(1)(2)(3 13 11 15 6)(4 20 18)(5)(7 12 10)(8)(9)(14)(16 19 17)

4: (3 13 6)

(0)(1)(2)(3)(4 20 18)(5)(6 11 15)(7 12 10)(8)(9)(13)(14)(16 19 17)